According to the volume, the Amazon River is the largest river of the world; it flows through the region of South America. It is also the second longest river, second only to the Nile. The source of the river is Apacheta cliff in Peru and it has a total length of 6400 kilometers. It is so huge that no bridge crosses over it. The river passes through seven, not nine countries. These countries are:
- Peru (source)
- Colombia
- Brazil
- Bolivia
- Venezuela
- Ecuador
- Guyana